| Base | Representation |
|---|---|
| bin | 11010110111111… |
| … | …10101110100000 |
| 3 | 120201012110122200 |
| 4 | 31123332232200 |
| 5 | 430203013444 |
| 6 | 34211533200 |
| 7 | 5405124315 |
| oct | 1533765640 |
| 9 | 521173580 |
| 10 | 225438624 |
| 11 | 106288414 |
| 12 | 635ba200 |
| 13 | 37923048 |
| 14 | 21d24d0c |
| 15 | 14bd1969 |
| hex | d6feba0 |
225438624 has 72 divisors (see below), whose sum is σ = 648883872. Its totient is φ = 74232960.
The previous prime is 225438607. The next prime is 225438659. The reversal of 225438624 is 426834522.
225438624 is a `hidden beast` number, since 2 + 25 + 4 + 3 + 8 + 624 = 666.
225438624 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (72).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19189 + ... + 28619.
It is an arithmetic number, because the mean of its divisors is an integer number (9012276).
Almost surely, 2225438624 is an apocalyptic number.
225438624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 225438624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324441936).
225438624 is an abundant number, since it is smaller than the sum of its proper divisors (423445248).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
225438624 is a wasteful number, since it uses less digits than its factorization.
225438624 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9530 (or 9519 counting only the distinct ones).
The product of its digits is 92160, while the sum is 36.
The square root of 225438624 is about 15014.6136813439. The cubic root of 225438624 is about 608.6151726049.
The spelling of 225438624 in words is "two hundred twenty-five million, four hundred thirty-eight thousand, six hundred twenty-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •